JP2012056346A - Side stand switch and side stand device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side stand switch that prevents an engagement pin disposed in a rotor member from being damaged when fastened by a fastening member, and to provide a side stand device.SOLUTION: The side stand switch includes: a case member 31 having a fixed contact 43; and a rotor body 51 which has a moving contact 54 in contact with the fixed contact 43 and which is mounted to the engagement pin by fastening a fixing bolt 6 thereto so that it is rotated with respect to the case member 31 together with a side stand bar 3. The engagement pin 63 inserted into an engagement hole 19 formed at the side stand bar 3 is inserted into the rotor body 51. The engagement pin 63 has such a configuration that a width along a rotating direction of the rotor body 51 becomes larger at a base end side in the rotor body 51 than at the tip side protruded from the rotor body 51.

Description

  The present invention relates to a side stand switch and a side stand device, and more particularly, to a side stand switch and a side stand device that detect a rotational position of a side stand bar that supports a motorcycle such as a motorcycle.

  In general, a motorcycle or the like is provided with a side stand device that supports the vehicle body in an upright state during parking. This side stand device is configured by rotatably attaching a side stand bar to a bracket provided on a vehicle body frame via a pivot bolt, and attaching a side stand switch to the pivot bolt via a fixing bolt. The side stand switch has a case member provided with a fixed contact and a rotor member provided with a movable contact. The side stand switch detects the rotation position of the side stand bar by rotating the rotor member together with the side stand bar. Yes.

  Conventionally, as a side stand switch for detecting the rotation position of the side stand bar, one in which a rotor member is engaged with the side stand bar via a pin is known (for example, see Patent Document 1). As shown in FIG. 11, in the side stand switch 91, the case member 98 is rotationally restricted by the restriction pin 97 protruding from the bracket 92, and the engagement pin 101 protruding from the rotor member 99 is formed on the side stand bar 93. The engagement hole 103 is engaged. In this state, the side stand switch 91 is fixed to the pivot bolt 94 by inserting the fixing bolt 96 through the central openings of the case member 98 and the rotor member 99 and tightening it in the screw hole 102 at the head of the pivot bolt 94. When the side stand bar 93 is rotated, the rotor member 99 is rotated via the engagement pin 101, and the rotation position of the side stand bar 93 is detected.

JP 2004-231094 A

  However, in the conventional side stand switch 91 as described above, when the fixing bolt 96 is tightened, the rotor member 99 is rotated by the fixing bolt 96 due to the rotational torque of the fixing bolt 96, and a large torque load is applied to the engaging pin 101. It was over. In particular, when the rotor member 99 is formed of a relatively weak material such as resin, the engagement pin 101 may be damaged by a torque load during tightening.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a side stand switch and a side stand device that can prevent breakage of an engagement pin provided on a rotor member when tightened by a fastening member. And

  The side stand switch of the present invention has a case member having a fixed contact and a movable contact that can contact the fixed contact, and is attached by tightening of a fastening member, and is a rotor member that rotates together with the side stand bar with respect to the case member. The rotor member is inserted with an engagement pin inserted into an engagement hole formed in the side stand bar, and the engagement pin is more than the tip side protruding from the rotor member. The width dimension along the rotation direction of the said rotor member becomes large in the base end side in a rotor member, It is characterized by the above-mentioned.

  According to this configuration, since the width dimension on the proximal end side is larger than the distal end side of the engagement pin, the stress concentration portion generated in the engagement pin is brought closer to the distal end side where the torque load is applied by tightening of the fastening member. Therefore, it is possible to reduce the load applied to the stress concentration portion of the engagement pin by tightening the fastening member, and to increase the strength of the engagement pin against the torque load and prevent the damage.

  In the side stand switch according to the present invention, the base end side of the engagement pin is formed such that the width dimension along the rotation direction of the rotor member gradually increases in the direction opposite to the protruding direction. It is characterized by that.

  According to this configuration, since the width of the base end side of the engagement pin gradually increases toward the side opposite to the protruding direction, the stress concentration portion can be brought closer to the front end side with a simple shape. Further, since the torque load is distributed on the base end side of the engagement pin, it is possible to prevent the entire engagement pin from falling due to the torque load and to integrally support the engagement pin on the rotor member.

  According to the present invention, in the side stand switch, a contact surface with the rotor member in a rotation direction of the rotor member is formed in an uneven shape on a proximal end side of the engagement pin.

  According to this configuration, since the base end side of the engagement pin is engaged with the rotor member by the uneven contact surface, this engagement prevents the entire engagement pin from falling due to a torque load, and The combined pin can be supported integrally.

  According to the present invention, in the side stand switch, the rotor member is formed of a resin, and the engagement pin is made of metal.

  According to this structure, the design freedom of a shape can be raised by shape | molding a rotor member with resin. Moreover, the manufacturing cost at the time of shaping | molding can be reduced compared with the case where a rotor member is shape | molded with a metal. Further, the side stand switch can be reduced in weight. Furthermore, since the metal surface is reduced in the side stand switch, the plating cost for preventing rust can be reduced. In addition, since the engaging pin is made of a high-strength metal, damage to the engaging pin is prevented even if an unexpected large force is applied to the engaging pin due to tightening of the fastening member, rotation of the side stand bar, or the like. .

  According to the present invention, in the side stand switch, the rotor member is engaged with the rotor body provided with the movable contact and the engagement pin so as to be relatively rotatable with respect to the rotor body, and the fastening member is tightened. A torque receiving member that receives the generated torque, and the rotor body receives the torque via the torque receiving member.

  According to this configuration, since the rotor body receives torque generated by tightening the fastening member via the torque receiving member, torque is not directly transmitted from the fastening member to the rotor body. Further, since the rotor body and the torque receiving member are engaged with each other so as to be relatively rotatable, the torque is absorbed by the relative rotation of the rotor body and the torque receiving member, and the torque received by the rotor body is reduced. Therefore, since the torque load applied to the engagement pin provided in the rotor body is reduced, the engagement pin is prevented from being damaged when tightened by the fastening member.

  According to the present invention, in the side stand switch, the side stand bar is rotatably attached to a bracket provided on a vehicle body frame via a pivot bolt, and the fastening member is fixed to attach the rotor member to the pivot bolt. The torque receiving member is formed in a cylindrical shape having a shaft hole through which the shaft portion of the fixing bolt is inserted, and the back surface of the head of the fixing bolt is in contact with one end surface in the axial direction; The upper surface of the head of the pivot bolt is in contact with the other end surface in the direction, and the rotor body has one end surface on the head side of the fixing bolt in the axial direction spaced apart from the back surface of the head of the fixing bolt. Features.

  According to this configuration, the one end surface in the axial direction of the torque receiving member is in contact with the back surface of the head of the fixing bolt, and the one end surface in the axial direction of the rotor body is separated. The rotor body does not receive torque directly from the fixing bolt.

  The side stand device of the present invention includes a side stand bar that supports the vehicle body in an upright state, a bracket provided on the vehicle body frame, a pivot bolt that rotatably attaches the side stand bar to the bracket, the side stand switch, and the side stand. And a fixing bolt for fastening the switch to the pivot bolt.

  According to this configuration, the strength of the engaging pin that engages with the side stand bar of the side stand switch when tightening with the fixing bolt can be increased, and durability when the side stand switch is attached with the fixing bolt can be improved.

  According to the present invention, it is possible to prevent the engagement pins provided on the rotor member from being damaged during the fastening by the fastening member.

It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is a perspective view of a side stand apparatus. It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is an exploded perspective view of a side stand apparatus. It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is a fragmentary sectional view of a side stand apparatus. It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is a perspective view of a rotor member. It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is a perspective view of an engagement pin. It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is explanatory drawing of the engagement state of a rotor main body and a torque receiving member. It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is explanatory drawing of the durable structure with respect to the torque load of an engaging pin. It is a figure which shows embodiment of the side stand switch which concerns on this invention, and is explanatory drawing of the attachment structure of a side stand switch. It is a figure which shows the modification of implementation of the side stand switch which concerns on this invention. It is a figure which shows other embodiment of the side stand switch which concerns on this invention, and is a perspective view of an engagement pin. It is a figure which shows the prior art example of the side stand switch which concerns on this invention.

  In the side stand switch attached to the side stand device of the motorcycle, the rotor member is engaged with the side stand bar via the engagement pin. In this side stand switch, since the rotational torque from the fastening member acts strongly on the engagement pin when the fastening member is tightened, durability of the engagement pin is required. On the other hand, weight reduction and cost reduction of the side stand switch are desired, and it is desired that the rotor member be formed of a material having a relatively low strength such as resin.

  In this case, a configuration is possible in which the rotor member is formed of resin and the metal engagement pin is insert-molded into the resin rotor member, but the durability of the engagement pin cannot be sufficiently obtained. In order to solve this problem, the applicant of the present invention has devised a structure in which the engagement pin 86 is formed of a T-shaped metal plate to enhance the coupling to the rotor member 89 as shown in FIG. That is, the base end portion 87 of the engagement pin 86 extends along the peripheral wall portion of the rotor member 89 and is inserted into the rotor member 89 so as to be strongly coupled to the rotor member 89.

  However, since the engaging pin 86 is formed in a T shape, a stress concentration point 90 is generated in the vicinity of the proximal end portion 87 far from the distal end side where the torque load is applied when tightening by the fastening member. For this reason, the load applied to the stress concentration portion 90 of the engagement pin 86 becomes large, and it has been difficult to sufficiently increase the strength of the engagement pin 86 against the torque load. If the strength of the engagement pin 86 is only increased, it is conceivable to increase the plate thickness. However, if the prescribed dimension of the engagement pin 86 is determined, the plate thickness cannot be increased.

  The inventors pay attention to the above points, and by increasing the width dimension of the portion embedded in the rotor member rather than the portion protruding from the rotor member in the engagement pin, the stress is applied to the distal end side of the engagement pin. The present inventors have found that the concentrated portion is close and have come to the present invention. That is, the main point of the present invention is to reduce the load applied to the stress concentration location by bringing the stress concentration location closer to the distal end side of the engagement pin, thereby increasing the strength of the engagement pin against torque load and preventing breakage. It is.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, the case where the present invention is applied to a side stand device of a motorcycle will be described. However, the application target of the side stand switch according to the present embodiment is not limited to this and can be appropriately changed.

  With reference to FIG. 1 and FIG. 2, the whole structure of a side stand apparatus is demonstrated. FIG. 1 is a perspective view of a side stand device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the side stand device according to the embodiment of the present invention.

  As shown in FIGS. 1 and 2, the side stand device 1 according to the present embodiment supports a motorcycle in an upright state when parked, and a bracket 2 provided on a vehicle body frame (not shown) A side stand bar 3 is rotatably provided via a pivot bolt 4. In the side stand device 1, a side stand switch 5 is provided on the pivot bolt 4 via a fixing bolt 6, and the rotation position of the side stand bar 3 is detected by the side stand switch 5.

  The bracket 2 includes a plate-like portion 11 and through-pins 12 that pass through the plate-like portion 11 in the thickness direction and are fixed. The plate-like portion 11 is formed with a shaft hole 13 penetratingly formed in the thickness direction at the attachment position of the side stand bar 3. One end side of the penetrating pin 12 functions as a positioning pin for positioning the side stand switch 5, and the other end side of the penetrating pin 12 functions as a locking pin that is locked by a return spring (not shown).

  The side stand bar 3 is attached to the bracket 2 by a pivot bolt 4 and is configured to be rotatable between a standing position grounded to the ground and a storage position substantially horizontal to the ground with the pivot bolt 4 as a center. . The base end side of the side stand bar 3 is provided with a pair of connecting portions 15 and 16 formed to be bifurcated so as to sandwich the plate-like portion 11, and a shaft hole so as to pass through the pair of connecting portions 15 and 16. 17 and 18 are formed. An engagement hole 19 that is engaged with the rotor member 32 of the side stand switch 5 is formed in the vicinity of the shaft hole 17 of one connecting portion 15.

  The pivot bolt 4 is inserted into the shaft holes 17 and 18 of the pair of connection portions 15 and 16 and the shaft hole 13 of the bracket 2 with the bracket 2 sandwiched between the pair of connection portions 15 and 16. In this case, the intermediate portion 23 of the pivot bolt 4 is inserted into the shaft hole 17 of one connecting portion 15 and the shaft hole 13 of the bracket 2, and the screw portion 24 on the distal end side is inserted into the shaft hole 18 of the other connecting portion 16. Part is exposed and exposed to the outside.

  The pivot bolt 4 is fixed to the pair of connecting portions 15 and 16 by screwing the fixing nut 7 to the exposed screw portion 24 and tightening the fixing nut 7. Thereby, the side stand bar 3 is rotated with respect to the bracket 2 together with the pivot bolt 4. A screw hole 22 into which the fixing bolt 6 is screwed is formed in the head 21 of the pivot bolt 4.

  The side stand switch 5 detects whether the side stand bar 3 is positioned on the side of the standing position or the storage position, and is attached to the head 21 of the pivot bolt 4 by the fixing bolt 6. The case member 31 of the side stand switch 5 is formed with a holding portion 34, and the side stand switch 5 is positioned by holding one end side of the penetrating pin 12 with the holding portion 34. The detailed configuration of the side stand switch 5 will be described later.

  The fixing bolt 6 is fixed to the pivot bolt 4 by inserting the side stand switch 5 and tightening the fixing bolt 6 while being screwed into the screw hole 22 of the pivot bolt 4. The fixing bolt 6 has a circular flange portion 27 at the head, and the side stand switch 5 is stably pressed by the flange portion 27.

  Next, a detailed configuration of the side stand switch will be described with reference to FIGS. FIG. 3 is a partial cross-sectional view of the side stand device according to the present embodiment. FIG. 4 is a perspective view of the rotor member according to the present embodiment. FIG. 5 is a perspective view of the engagement pin according to the embodiment of the present invention. In FIG. 5, for convenience of explanation, the rotor body is indicated by a broken line.

  As shown in FIGS. 3 and 4, the side stand switch 5 includes a case member 31 whose rotation is restricted to one end side of the penetrating pin 12, and a rotor member 32 that is rotatably housed inside the case member 31. Configured. The case member 31 is formed of a cylindrical portion 33 that is molded of a synthetic resin or the like and has an open lower surface, and the above-described clamping portion 34 that is provided on the side of the cylindrical portion 33. A circular opening 37 is formed in the upper wall of the cylindrical portion 33, and a ring-shaped bearing member 41 that pivotally supports the upper portion of the rotor member 32 is provided in the circular opening 37. A ring-shaped bearing member 42 that pivotally supports the lower portion of the rotor member 32 is provided at the lower portion of the side wall of the cylindrical portion 33.

  A fixed contact 43 is provided around the circular opening 37 on the upper wall of the tubular portion 33, and the fixed contact 43 is exposed in the tubular portion 33. The fixed contact 43 is configured by arranging an arc-shaped common fixed contact and two individual fixed contacts in an annular shape, and one individual fixed contact corresponds to the storage position side of the side stand bar 3 and the other individual fixed contact. The contact corresponds to the standing position side of the side stand bar 3. In this case, when the common fixed contact and one of the individual fixed contacts are connected, the motorcycle can be detected, and when the common fixed contact and the other individual fixed contact are connected, the motorcycle is parked. Is detected.

  The rotor member 32 includes a rotor main body 51 that is rotatably supported with respect to the case member 31, and a torque receiving member 52 that is frictionally engaged with the opening 56 in the central portion of the rotor main body 51. The rotor body 51 is formed of a synthetic resin or the like, and has a ring-shaped disk part 57 having an opening 56 at the center part, an annular upper shaft part 58 protruding upward from the opening edge of the disk part 57, and a disk part. An annular lower shaft portion 59 projecting downward is provided on the outer peripheral side of 57.

  On the upper surface of the disk portion 57, on the outer peripheral edge side, holding portions 61 for holding the three coil springs 53 and positioning holes 62 for positioning the movable contact 54 are alternately formed at equal intervals in the circumferential direction. A movable contact 54 is placed on the upper end of the spring 53. The movable contact 54 is formed in a semicircular arc shape, and contact portions 65 are formed at three places, both end portions and an intermediate portion in the extending direction, and a positioning locking portion 66 is formed between the adjacent contact portions 65. Has been. The movable contact 54 is positioned on the disk portion 57 by locking the locking portion 66 in the positioning hole 62, and each contact portion 65 is positioned above the coil spring 53. As described above, the movable contact 54 is configured to be rotatable together with the rotor body 51 in a state in which the movable contact 54 is urged toward the fixed contact 43 by the coil spring 53 from the back surface.

  The upper shaft portion 58 is formed in a hollow cylindrical shape and is rotatably supported by the bearing member 41. The lower shaft portion 59 accommodates the head 21 of the pivot bolt 4 inside and is rotatably supported by the bearing member 42. As described above, the rotor body 51 is rotatably supported by the bearing members 41 and 42 at both the upper and lower ends, and thus is stably held in the case member 31. Further, a metal engagement pin 63 protruding downward from the lower end surface is inserted into the lower shaft portion 59, and the engagement pin 63 is inserted into the engagement hole 19 formed in the side stand bar 3. With this configuration, the rotor body 51 is engaged with the side stand bar 3 via the engagement pin 63 and is rotated together with the side stand bar 3.

  As shown in FIG. 5, the engagement pin 63 is formed of a thin metal plate, the support plate portion 74 on the proximal end side is embedded in the rotor body 51, and the engagement plate portion 75 on the distal end side is embedded in the rotor body 51. It protrudes from. The engagement pin 63 is arranged with the plate surface along the peripheral surface of the lower shaft portion 59, and comes into contact with the inner peripheral surface of the engagement hole 19 of the side stand bar 3 at a high-strength side surface (plate thick surface). It is configured. The engagement plate portion 75 protrudes with a prescribed shape and a prescribed dimension, and a torque load acts when the fixing bolt 6 is tightened as will be described later. The support plate 74 is formed in a skirt shape so that the width dimension increases in the direction opposite to the protruding direction (inner direction of the rotor main body 51). For this reason, the support plate portion 74 has increased rigidity against a torque load.

  Returning to FIG. 3, the torque receiving member 52 is formed of a metal in a hollow cylindrical shape, and is press-fitted into the opening 56 of the rotor body 51. A central portion of the torque receiving member 52 is an insertion hole 71 through which the shaft portion of the fixing bolt 6 is inserted, and the fixing bolt 6 is screwed into the screw hole 22 of the pivot bolt 4 through the insertion hole 71. In this case, the torque receiving member 52 has an upper end surface in contact with the back surface of the flange portion 27 of the fixing bolt 6 and a lower end surface in contact with the upper surface of the head 21 of the pivot bolt 4.

  In the side stand device 1 configured as described above, when the motorcycle is driven, the side stand bar 3 is pushed up by the driver, and the side stand bar 3 rotates from the standing position to the storage position with the pivot bolt 4 as a fulcrum. Is done. At this time, the rotor body 51 rotates together with the side stand bar 3 via the engaging pin 63, and the contact portion 65 of the movable contact 54 provided on the rotor body 51 is fixed to the common fixed contact of the fixed contact 43 and one of the individual fixed contacts. Conduct the contact. Thereby, it is detected by the side stand switch 5 that the side stand bar 3 is located at the storage position.

  On the other hand, when the motorcycle is parked, the side stand bar 3 is pushed down by the driver, and the side stand bar 3 is rotated from the storage position to the standing position with the pivot bolt 4 as a fulcrum. At this time, the rotor main body 51 rotates together with the side stand bar 3 via the engaging pin 63, and the contact portion 65 of the movable contact 54 provided on the rotor main body 51 is connected to the common fixed contact of the fixed contact 43 and the other individual fixed contact. Conduct the contact. Thereby, it is detected by the side stand switch 5 that the side stand bar 3 is located in the standing position.

  Next, the engaged state between the rotor body and the torque receiving member will be described with reference to FIG. FIG. 6 is an explanatory diagram of an engaged state between the rotor body and the torque receiving member according to the embodiment of the present invention. In FIG. 6, the fixing bolt and the pivot bolt are indicated by a one-dot chain line for convenience of explanation.

  As shown in FIG. 6, the rotor main body 51 and the torque receiving member 52 are frictionally engaged with each other so as to be relatively rotatable by press-fitting. At this time, the upper end surface 72 of the torque receiving member 52 protrudes above the upper end surface 73 of the rotor body 51 and abuts on the rear surface of the flange portion 27 of the fixing bolt 6. The upper end surface 73 of the upper shaft portion 58 is separated from the upper end portion 58. Therefore, torque is prevented from being transmitted directly from the fixing bolt 6 to the rotor body 51 when the fixing bolt 6 is tightened.

  Further, the frictional force between the engagement surfaces of the rotor main body 51 and the torque receiving member 52 is smaller than the torque generated by tightening the fixing bolt 6, and the rotor main body 51 is only transmitted when a certain torque or more is transmitted to the rotor main body. And the torque receiving member 52 are configured to rotate relative to each other. Thus, the fixing bolt 6 and the rotor body 51 rotate relative to each other only when a strong torque is applied at the time of tightening. Therefore, after the tightening, the frictional engagement between the rotor body 51 and the torque receiving member 52 causes a backlash caused by vibration. Chattering or the like does not occur.

  In the present embodiment, the torque receiving member 52 is press-fitted into the opening 56 of the rotor main body 51. However, the present invention is not limited to this configuration. As long as the rotor body 51 and the torque receiving member 52 are engaged with each other with an engaging force smaller than the torque generated by tightening the fixing bolt 6, any configuration may be used. For example, the torque receiving member 52 is formed by insert molding. The structure engaged with the opening part 56 of the rotor main body 51, and the structure engaged with the opening part 56 of the rotor main body 51 by the snap fit may be sufficient.

  Next, with reference to FIG. 7, the durable structure with respect to the torque load of the engaging pin which is the characteristic part of this invention is demonstrated. FIG. 7 is an explanatory diagram of a durability structure against a torque load of the engaging pin according to the embodiment of the present invention.

  As shown in FIG. 7A, the engagement pin 63 is configured such that the proximal end side support plate portion 74 is embedded in the rotor body 51 with the distal end side engagement plate portion 75 protruding from the rotor body 51. ing. Further, the support plate portion 74 is formed in a skirt shape so that the width dimension increases from the lower portion of the engagement plate portion 75 into the rotor main body 51, and the rigidity against the torque load is enhanced as compared with the engagement plate portion 75. ing. Therefore, when a torque load is applied to the engagement plate portion 75, a stress concentration point 76 is generated at the boundary portion between the engagement plate portion 75 and the support plate portion 74.

  As described above, in the engaging pin 63 according to the present embodiment, the stress concentration point 76 is brought close to the tip side of the engaging plate portion 75, that is, the point where the torque load acts. The load related to the stress concentration point 76 increases as the stress concentration point 76 and the point where the torque load acts are separated from each other. In this engagement pin 63, the stress concentration point 76 and the point where the torque load acts are brought close to each other, so that the load applied to the stress concentration point 76 is reduced. Further, since the engaging pin 63 receives the torque load at the plate thickness surface 77, durability against the torque load is enhanced. Therefore, the strength of the engagement pin 63 is increased, and the engagement pin 63 is prevented from being deformed (damaged) at the stress concentration point 76 due to the torque load.

  As shown in FIG. 7B, the support plate portion 74 is supported in the rotor body 51 so that the contact area with the rotor body 51 is increased. Therefore, the engagement pin 63 is strongly coupled to the rotor main body 51 on the base end side, and integrity with the rotor main body 51 is ensured even if it is formed of a material different from the rotor main body 51. In this case, the support plate portion 74 has an inclined plate thickness surface 77 in the rotor body 51. When a torque load is applied to the engagement plate portion 75, the torque load is distributed on the plate thickness surface 77 as shown by the broken line, and the force acting in the direction of deforming (breaking) the rotor body 51 is weakened. Therefore, the entire engaging pin 63 is prevented from falling while deforming the rotor body 51, and the integrity of the rotor body 51 and the engaging pin 63 is improved.

  As described above, the engaging pin 63 according to the present embodiment can reduce the load applied to the stress concentration point 76 and increase the strength of the engaging pin with respect to the torque load. Further, the engaging pin 63 is prevented from falling over while deforming the rotor body 51 by distributing the torque load on the plate thickness surface 77 of the engaging plate portion 75. Therefore, even if the rotor main body 51 is formed of a relatively weak material such as resin, the engagement pins 63 can be integrally supported by the rotor main body 51.

  Further, by forming the rotor body 51 from resin, it is possible to increase the design freedom of the shape and to reduce the manufacturing cost at the time of molding as compared with the case where the rotor body 51 is molded from metal. Further, the side stand switch 5 can be reduced in weight. Furthermore, since the metal surface of the side stand switch 5 is reduced, the plating cost for preventing rust can be reduced.

  With reference to FIG. 8, the attachment structure of a side stand switch is demonstrated. FIG. 8 is an explanatory diagram of a mounting configuration of the side stand switch according to the embodiment of the present invention. In addition, the arrow shown in FIG. 8 has shown the magnitude | size of the torque.

  As shown in FIG. 8, when the fixing bolt 6 is tightened after the side stand switch 5 is attached to the pivot bolt 4, torque generated by tightening the fixing bolt 6 is transmitted to the torque receiving member 52. The torque transmitted to the torque receiving member 52 is transmitted to the rotor body 51 via the engagement surface between the torque receiving member 52 and the rotor body 51. At this time, the rotation of the rotor body 51 is restricted to the side stand bar 3 by the engagement pin 63 and the friction force between the torque receiving member 52 and the rotor body 51 is smaller than the torque from the fixing bolt 6. Is rotated with respect to the rotor body 51.

  The torque from the fixing bolt 6 is absorbed by the relative rotation between the torque receiving member 52 and the rotor body 51, and the torque transmitted from the torque receiving member 52 to the rotor body 51 is greatly reduced. Thus, since the torque transmitted to the rotor main body 51 is reduced, the torque load applied to the engagement pin 63 is reduced. At this time, as described above, the engagement pin 63 has a small load at the stress concentration point 76 due to the torque load, and the tilt of the rotor body 51 from the standing state is suppressed. Therefore, while the torque load applied to the engaging pin 63 is reduced, the strength of the engaging pin 63 and the integrity of the engaging pin 63 with respect to the rotor main body 51 are enhanced. Is effectively prevented from being damaged.

  Further, after the fixing bolt 6 is tightened, the rotor main body 51 and the torque receiving member 52 function as rigid bodies due to the frictional engagement between the rotor main body 51 and the torque receiving member 52, and rattling and chattering due to vibration are suppressed.

  As described above, according to the side stand switch 5 according to the present embodiment, in the engagement pin 63, since the width dimension of the support plate portion 74 on the proximal end side is larger than the engagement plate portion 75 on the distal end side, the fixing bolt By tightening 6, the stress concentration point 76 is brought closer to the distal end side of the engagement pin 63 to which a torque load is applied. Therefore, the load applied to the stress concentration point 76 of the engagement pin 63 is reduced. Further, since the torque is absorbed by the relative rotation between the rotor body 51 and the torque receiving member 52, the torque load applied to the engagement pin 63 is further reduced. Therefore, the strength of the engagement pin 63 against the torque load can be increased to prevent breakage.

  In the above-described embodiment, the base end side of the engagement pin is formed in a skirt shape. However, the present invention is not limited to this configuration. The engagement pin may have any shape as long as the width dimension is larger on the proximal end side embedded in the rotor member than on the distal end side protruding from the rotor member. For example, the base end side of the engagement pin may be formed in a rectangular shape or a circular shape having a larger width dimension than the distal end side.

  Further, in the above-described embodiment, the plate thickness surface on the base end side of the engagement pin is formed to be flat. However, as shown in FIG. 9, the engagement pin is formed in an uneven shape (saw blade shape). Also good. As shown in FIG. 9, the engagement pin 81 is formed so that the width of the support plate 82 on the base end side increases in the direction opposite to the protruding direction (inner direction of the rotor member 32). The plate thickness surface 84 of the plate portion 82 is formed in an uneven shape. With this configuration, since the proximal end side of the engagement pin 81 is engaged with the rotor member 32 by the uneven plate thickness surface 84, the engagement pin 81 as a whole is integrated with the rotor member 32 by torque load due to this engagement. Strongly supported.

  Specifically, the contact area between the rotor member 32 and the engagement pin 81 is increased by the plurality of unevennesses of the plate thickness surface 84, and the torque load is finely dispersed by the unevenness to deform (break) the rotor member 32. The force acting in the direction is weakened. Therefore, the entire engaging pin 81 is prevented from falling while deforming the rotor member 32, and the integrity of the rotor member 32 and the engaging pin 81 is enhanced. The engagement pin is not limited to a configuration having a plurality of irregularities on the plate thickness surface, and may have a configuration having one irregularity.

  In the above-described embodiment, the rotor main body and the torque receiving member are frictionally engaged. However, the present invention is not limited to this configuration. The engagement force between the rotor body and the torque receiving member may be smaller than the torque from the fixing bolt. For example, the rotor body and the torque receiving member may be configured to slide.

  Further, in the above-described embodiment, the one end surface of the torque receiving member in the axial direction is brought into contact with the back surface of the flange portion of the fixing bolt, and the one end surface in the axial direction of the rotor body is separated from the back surface of the flange portion. However, it is not limited to this configuration. Any configuration may be used as long as the rotor body is configured to receive torque via a torque receiving member.

  In the above-described embodiment, the fixing bolt is described as an example of the fastening member, but the present invention is not limited to this configuration. Any configuration may be used as long as the side stand switch is attached by tightening. For example, the fastening member may be configured by a fixing nut.

  In the above-described embodiment, the side stand switch is attached to the pivot bolt. However, the present invention is not limited to this configuration. As long as the rotation position of the side stand bar can be detected, the side stand bar may be attached to any part of the side stand device.

  In the above-described embodiment, the rotor member absorbs the torque from the fastening member by the relative rotation of the rotor body and the torque receiving member. However, the present invention is not limited to this configuration. A rotor member is good also as a structure which does not have a rotor main body and a torque receiving member, and does not absorb the torque from a fastening member. Even in such a rotor member, since the load at the stress concentration portion of the engagement pin is reduced, it is possible to prevent the engagement pin from being damaged when tightened by the fastening member.

  In the above-described embodiment, the rotor member (rotor main body) is molded from resin. However, the present invention is not limited to this configuration. The rotor member may be formed of any material. The engagement pin of the present invention is particularly useful for a rotor body having a low strength.

  The embodiment disclosed this time is illustrative in all respects and is not limited to this embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

  As described above, the present invention has an effect that it is possible to prevent breakage of an engagement pin provided on a rotor member when tightening with a fastening member, and in particular, a side stand that supports a motorcycle such as a motorcycle. This is useful for a side stand switch and a side stand device for detecting the rotation position of the bar.

DESCRIPTION OF SYMBOLS 1 Side stand apparatus 2 Bracket 3 Side stand bar 4 Pivot bolt 5 Side stand switch 6 Fixing bolt (fastening member)
7 Fixed nut 19 Engagement hole 21 Head 31 Case member 32 Rotor member 43 Fixed contact 51 Rotor body 52 Torque receiving member 54 Movable contact 63, 81 Engagement pin 74, 82 Support plate (base end side of engagement pin)
75, 83 Engagement plate (engagement pin tip side)
76 Stress concentration points 77, 84 Thick surface

Claims (7)

A case member having a fixed contact;
A movable contact that can contact the fixed contact, and is attached by tightening a fastening member, and includes a rotor member that rotates together with a side stand bar with respect to the case member,
In the rotor member, an engagement pin inserted through an engagement hole formed in the side stand bar is inserted,
The side stand switch according to claim 1, wherein the engaging pin has a width dimension along a rotation direction of the rotor member on a proximal end side in the rotor member rather than a distal end side protruding from the rotor member.   The base end side of the engagement pin is formed so that a width dimension along a rotation direction of the rotor member gradually increases in a direction opposite to a protruding direction. Side stand switch.   3. The side stand switch according to claim 1, wherein a contact surface with the rotor member in a rotation direction of the rotor member is formed in an uneven shape on a proximal end side of the engagement pin.   The side stand switch according to any one of claims 1 to 3, wherein the rotor member is formed of resin, and the engagement pin is made of metal. The rotor member includes a rotor body provided with the movable contact and the engagement pin, and a torque receiving member that is engaged with the rotor body so as to be relatively rotatable and receives torque generated by tightening of the fastening member. And
The side stand switch according to any one of claims 1 to 4, wherein the rotor body receives the torque via the torque receiving member. The side stand bar is pivotally attached to a bracket provided on the vehicle body frame via a pivot bolt,
The fastening member is a fixing bolt for attaching the rotor member to the pivot bolt,
The torque receiving member is formed in a cylindrical shape having a shaft hole through which the shaft portion of the fixing bolt is inserted, the head back surface of the fixing bolt is in contact with one end surface in the axial direction, and the other end surface in the axial direction The upper surface of the head of the pivot bolt is in contact with
6. The side stand switch according to claim 5, wherein the rotor main body has one end surface on the head side of the fixing bolt in the axial direction spaced apart from the back surface of the head of the fixing bolt. A side stand bar that supports the vehicle body in an upright state;
A bracket provided on the body frame,
A pivot bolt for pivotally attaching the side stand bar to the bracket;
The side stand switch according to any one of claims 1 to 6,
A side stand device comprising: a fixing bolt for fastening the side stand switch to the pivot bolt.

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